FIFE  6e1afdbeda11afe9ac53e6023a4be96ef88f1dc6
gridrenderer.cpp
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21 
22 // Standard C++ library includes
23 
24 // 3rd party library includes
25 
26 // FIFE includes
27 // These includes are split up in two parts, separated by one empty line
28 // First block: files included from the FIFE root src directory
29 // Second block: files included from the same folder
30 #include "video/renderbackend.h"
31 #include "util/math/fife_math.h"
32 #include "util/log/logger.h"
35 #include "model/structures/layer.h"
37 
38 #include "view/camera.h"
39 #include "gridrenderer.h"
40 
41 
42 namespace FIFE {
46  static Logger _log(LM_VIEWVIEW);
47 
48  GridRenderer::GridRenderer(RenderBackend* renderbackend, int32_t position):
49  RendererBase(renderbackend, position) {
50  setEnabled(false);
51  m_color.r = 0;
52  m_color.g = 255;
53  m_color.b = 0;
54  }
55 
57  RendererBase(old),
58  m_color(old.m_color) {
59  setEnabled(false);
60  }
61 
63  return new GridRenderer(*this);
64  }
65 
67  }
68 
70  return dynamic_cast<GridRenderer*>(cnt->getRenderer("GridRenderer"));
71  }
72 
73  void GridRenderer::render(Camera* cam, Layer* layer, RenderList& instances) {
74  CellGrid* cg = layer->getCellGrid();
75  if (!cg) {
76  FL_WARN(_log, "No cellgrid assigned to layer, cannot draw grid");
77  return;
78  }
79 
80 //
81 // //render elev_coord box
82 // //draw front quad
83 // // 1,1,1
84 // //1,-1,1
85 // //-1,-1,1
86 // //-1,1,1
87  //We don't need the elevation box atm
88 // Point a,b,c,d;
89 //
90 //
91 // ScreenPoint copt1 =cam->toScreenCoordinates(ExactModelCoordinate(1,1,1) );
92 // ScreenPoint copt2 =cam->toScreenCoordinates(ExactModelCoordinate(1,-1,1) );
93 // Point coptt1(copt1.x,copt1.y);
94 // Point coptt2(copt2.x,copt2.y);
95 // m_renderbackend->drawLine(coptt1,coptt2 ,15, 15, 200);
96 // a = coptt1;
97 //
98 // copt1 =cam->toScreenCoordinates(ExactModelCoordinate(1,-1,1) );
99 // copt2 =cam->toScreenCoordinates(ExactModelCoordinate(-1,-1,1) );
100 // coptt1 = Point(copt1.x,copt1.y);
101 // coptt2 = Point(copt2.x,copt2.y);
102 // m_renderbackend->drawLine(coptt1,coptt2 ,15, 15, 200);
103 // b = coptt1;
104 //
105 // copt1 =cam->toScreenCoordinates(ExactModelCoordinate(-1,-1,1) );
106 // copt2 =cam->toScreenCoordinates(ExactModelCoordinate(-1,1,1) );
107 // coptt1 = Point(copt1.x,copt1.y);
108 // coptt2 = Point(copt2.x,copt2.y);
109 // m_renderbackend->drawLine(coptt1,coptt2 ,15, 15, 200);
110 // c = coptt1;
111 //
112 // copt1 =cam->toScreenCoordinates(ExactModelCoordinate(-1,1,1) );
113 // copt2 =cam->toScreenCoordinates(ExactModelCoordinate(1,1,1) );
114 // coptt1 = Point(copt1.x,copt1.y);
115 // coptt2 = Point(copt2.x,copt2.y);
116 // m_renderbackend->drawLine(coptt1,coptt2 ,15, 15, 20);
117 // d = coptt1;
118 //
119 // m_renderbackend->drawQuad(a,b,c,d,15, 15, 200);
120 //
121 //
122 // //draw back quad
123 // copt1 =cam->toScreenCoordinates(ExactModelCoordinate(-1,-1,-1) );
124 // copt2 =cam->toScreenCoordinates(ExactModelCoordinate(-1,1,-1) );
125 // coptt1 = Point(copt1.x,copt1.y);
126 // coptt2 = Point(copt2.x,copt2.y);
127 // m_renderbackend->drawLine(coptt1,coptt2 ,200, 200, 200);
128 //
129 // copt1 =cam->toScreenCoordinates(ExactModelCoordinate(-1,1,-1) );
130 // copt2 =cam->toScreenCoordinates(ExactModelCoordinate(1,1,-1) );
131 // coptt1 = Point(copt1.x,copt1.y);
132 // coptt2 = Point(copt2.x,copt2.y);
133 // m_renderbackend->drawLine(coptt1,coptt2 ,200, 200, 200);
134 //
135 // copt1 =cam->toScreenCoordinates(ExactModelCoordinate(1,1,-1) );
136 // copt2 =cam->toScreenCoordinates(ExactModelCoordinate(1,-1,-1) );
137 // coptt1 = Point(copt1.x,copt1.y);
138 // coptt2 = Point(copt2.x,copt2.y);
139 // m_renderbackend->drawLine(coptt1,coptt2 ,200, 200, 200);
140 //
141 // copt1 =cam->toScreenCoordinates(ExactModelCoordinate(1,-1,-1) );
142 // copt2 =cam->toScreenCoordinates(ExactModelCoordinate(-1,-1,-1) );
143 // coptt1 = Point(copt1.x,copt1.y);
144 // coptt2 = Point(copt2.x,copt2.y);
145 // m_renderbackend->drawLine(coptt1,coptt2 ,200, 200, 200);
146 
147 
148  // make the viewport 25% larger
149  Rect cv = cam->getViewPort();
150  int32_t cvx2 = round((cv.x+cv.w) * 1.25);
151  int32_t cvy2 = round((cv.y+cv.h) * 1.25);
152  cv.x -= round((cv.x+cv.w) * 0.125);
153  cv.y -= round((cv.y+cv.h) * 0.125);
154  RenderList::const_iterator instance_it = instances.begin();
155  for (;instance_it != instances.end(); ++instance_it) {
156  Instance* instance = (*instance_it)->instance;
157  std::vector<ExactModelCoordinate> vertices;
158  cg->getVertices(vertices, instance->getLocationRef().getLayerCoordinates());
159  std::vector<ExactModelCoordinate>::const_iterator it = vertices.begin();
160  ScreenPoint firstpt = cam->toScreenCoordinates(cg->toMapCoordinates(*it));
161  Point pt1(firstpt.x, firstpt.y);
162  Point pt2;
163  ++it;
164  for (; it != vertices.end(); it++) {
165  ScreenPoint pts = cam->toScreenCoordinates(cg->toMapCoordinates(*it));
166  pt2.x = pts.x;
167  pt2.y = pts.y;
168  Point cpt1 = pt1;
169  Point cpt2 = pt2;
170 
171  if (cpt1.x < cv.x) cpt1.x = cv.x;
172  if (cpt2.x < cv.x) cpt2.x = cv.x;
173  if (cpt1.y < cv.y) cpt1.y = cv.y;
174  if (cpt2.y < cv.y) cpt2.y = cv.y;
175  if (cpt1.x > cvx2) cpt1.x = cvx2;
176  if (cpt2.x > cvx2) cpt2.x = cvx2;
177  if (cpt1.y > cvy2) cpt1.y = cvy2;
178  if (cpt2.y > cvy2) cpt2.y = cvy2;
179 
180  m_renderbackend->drawLine(cpt1, cpt2, m_color.r, m_color.g, m_color.b);
181  pt1 = pt2;
182  }
183  if ((pt2.x >= cv.x) && (pt2.x <= cvx2) && (pt2.y >= cv.y) && (pt2.y <= cvy2)) {
184  if ((firstpt.x >= cv.x) && (firstpt.x <= cvx2) && (firstpt.y >= cv.y) && (firstpt.y <= cvy2)) {
185  m_renderbackend->drawLine(pt2, Point(firstpt.x, firstpt.y), m_color.r, m_color.g, m_color.b);
186  }
187  }
188  }
189  }
190 
191  void GridRenderer::setColor(Uint8 r, Uint8 g, Uint8 b) {
192  m_color.r = r;
193  m_color.g = g;
194  m_color.b = b;
195  }
196 }
#define FL_WARN(logger, msg)
Definition: logger.h:72
Abstract interface for all the renderbackends.
std::vector< RenderItem * > RenderList
Definition: renderitem.h:130
T h
Height of the rectangle.
Definition: rect.h:93
T x
The X Coordinate.
Definition: rect.h:84
Interface to class owning the renderers Used to get correct subclass of renderer in scripting side (v...
Definition: rendererbase.h:66
static Logger _log(LM_AUDIO)
virtual ~GridRenderer()
Destructor.
virtual RendererBase * getRenderer(const std::string &renderername)=0
Returns renderer with given name.
Camera describes properties of a view port shown in the main screen Main screen can have multiple cam...
Definition: camera.h:59
Location & getLocationRef()
Gets reference of current location of instance.
Definition: instance.cpp:318
ModelCoordinate getLayerCoordinates() const
Gets cell precision layer coordinates set to this location.
Definition: location.cpp:113
virtual void getVertices(std::vector< ExactModelCoordinate > &vtx, const ModelCoordinate &cell)=0
Fills given point vector with vertices from selected cell.
RenderBackend * m_renderbackend
Definition: rendererbase.h:171
PointType2D< int32_t > Point
Definition: point.h:195
const Rect & getViewPort() const
Gets the viewport for camera in pixel coordinates.
Definition: camera.cpp:304
Base class for all view renderers View renderer renders one aspect of the view shown on screen...
Definition: rendererbase.h:78
A basic layer on a map.
Definition: layer.h:99
static GridRenderer * getInstance(IRendererContainer *cnt)
virtual void drawLine(const Point &p1, const Point &p2, uint8_t r, uint8_t g, uint8_t b, uint8_t a=255)=0
Draws line between given points with given RGBA.
virtual void setEnabled(bool enabled)
Enables renderer.
T y
The Y Coordinate.
Definition: rect.h:87
CellGrid * getCellGrid() const
Get the Cellgrid.
Definition: layer.cpp:93
GridRenderer(RenderBackend *renderbackend, int32_t position)
constructor.
ScreenPoint toScreenCoordinates(const ExactModelCoordinate &map_coords)
Transforms given point from map coordinates to screen coordinates.
Definition: camera.cpp:428
A 3D Point.
Definition: point.h:205
void render(Camera *cam, Layer *layer, RenderList &instances)
This method is called by the view to ask renderer to draw its rendering aspect based on given paramet...
void setColor(Uint8 r, Uint8 g, Uint8 b)
RendererBase * clone()
Makes copy of this renderer.
ExactModelCoordinate toMapCoordinates(const ModelCoordinate &layer_coords)
Transforms given point from layer coordinates to map coordinates.
Definition: cellgrid.cpp:75
T w
Width of the rectangle.
Definition: rect.h:90
An Instance is an "instantiation" of an Object at a Location.
Definition: instance.h:101